Home / 53,689.10-80,507.70-19,931.84

Finding the Fourth Proportional to 53,689.10, 80,507.70 and 19,931.84

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Solution

The fourth proportional to 53,689.10, 80,507.70 and 19,931.84 is: 29,888.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,689.10 : 80,507.70 = 19,931.84 : x
  2. Step 2: Convert to fraction form
    53,689.10/80,507.70 = 19,931.84/x
  3. Step 3: Cross multiply
    53,689.10x = 80,507.70 × 19,931.84
  4. Step 4: Simplify right side
    53,689.10x = 1,604,666,595.17
  5. Step 5: Solve for x
    x = 1,604,666,595.17/53,689.10
  6. Step 6: Final answer
    x = 29,888.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.